Speech enhancement using combination of dereverberation and noise reduction for robust speech recognition
Tien Dung Tran, Dang Khoa Nguyen, Thi Anh Xuan Tran, Quoc Cuong Nguyen, Huu Nguyen · 2011
In this paper, we describe a speech enhancement approach for robust speech recognition. This approach consists of two stages to solve both current problems of speech recognition: reverberation and noise. Firstly, speech signal is dereveberated by suppression of slowly -- varying components and the falling edge of the power envelope (SSF). Then a binaural speech processing is applied to remove noise from target speech. Speech recognition results show that this combination algorithm provides a good robustness in real environments.